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使用 @remotion/media-parser 从视频获取元数据

warning

我们正在逐步淘汰 Media Parser，并转向使用 Mediabunny！

🌐 Not recommended anymore

我们正在逐步淘汰 Media Parser，并转向使用 Mediabunny！
请参阅：使用 Mediabunny 获取元数据 以了解新的推荐方法。

使用@remotion/media-parser，你可以从各种媒体格式获取元数据。

🌐 Using @remotion/media-parser, you can get metadata from a variety of media formats.

从 URL 获取元数据​

🌐 Getting metadata from a URL

指定你想要阅读的 fields 以及作为 src 的 URL。
这在浏览器以及 Node.js 和 Bun 中都有效。

🌐 Specify the fields you would like to read and the URl as src.
This works in the browser as well as in Node.js and Bun.

Parsing a hosted video
import {parseMedia} from '@remotion/media-parser';

const result = await parseMedia({
  src: 'https://remotion.media/video.mp4',
  fields: {
    durationInSeconds: true,
    dimensions: true,
  },
});

console.log(result.durationInSeconds); // 10
console.log(result.dimensions); // {width: 1920, height: 1080}

从本地路径获取元数据​

🌐 Getting metadata from a local path

使用 nodeReader 从文件系统读取文件。
这可以在 Node.js 和 Bun 中使用。

🌐 Use nodeReader to read a file from a filesystem.
This can be used in Node.js and Bun.

Parsing a video from a file path
import {parseMedia} from '@remotion/media-parser';
import {nodeReader} from '@remotion/media-parser/node';

const result = await parseMedia({
  src: '/tmp/video.mp4',
  fields: {
    durationInSeconds: true,
    dimensions: true,
  },
  reader: nodeReader,
});

console.log(result.durationInSeconds); // 10
console.log(result.dimensions); // {width: 1920, height: 1080}

从 File 获取元数据​

🌐 Getting metadata from a File

如果你在浏览器中接收用户上传，它们将以File的形式出现。

🌐 If you take user uploads in the browser, they will be in the form of a File.

Parsing a video from a file path
import {parseMedia} from '@remotion/media-parser';

// You would get this from a `<input type="file">`
const file = new File([], 'video.mp4');

const result = await parseMedia({
  src: file,
  fields: {
    durationInSeconds: true,
    dimensions: true,
  },
});

console.log(result.durationInSeconds); // 10
console.log(result.dimensions); // {width: 1920, height: 1080}

可用字段​

🌐 Available fields

你可以读取视频文件的时长、尺寸、帧率、容器格式、编解码器、ID3标签及更多信息。

🌐 You can read the duration, the dimensions, the framerate, the container format, the codecs, the ID3 tags and more information from a video file.

请参见 可用字段 获取完整列表。

🌐 See Available Fields for a complete list.

尽快获取元数据​

🌐 Getting metadata as soon as possible

Parsing a video from a File
import {parseMedia} from '@remotion/media-parser';

const result = await parseMedia({
  src: 'https://remotion.media/video.mp4',
  fields: {
    durationInSeconds: true,
    dimensions: true,
  },
  onDurationInSeconds: (durationInSeconds) => {
    console.log(durationInSeconds); // 10
  },
});

console.log(result.dimensions); // {width: 1920, height: 1080}

另请参阅​

🌐 See also

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